Meridianville, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.2 °F (low) to 70.3 °F (high). Annual precipitation averages 58.6 Inches. Meridianville is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 30.5 °F | 49.0 °F | 5.51 in. |
| February | 32.9 °F | 53.4 °F | 5.35 in. |
| March | 39.7 °F | 61.8 °F | 5.27 in. |
| April | 48.2 °F | 70.8 °F | 5.23 in. |
| May | 57.6 °F | 78.6 °F | 4.51 in. |
| June | 65.0 °F | 85.1 °F | 4.77 in. |
| July | 68.5 °F | 88.2 °F | 5.02 in. |
| August | 66.9 °F | 87.8 °F | 4.19 in. |
| September | 60.5 °F | 82.8 °F | 4.14 in. |
| October | 48.6 °F | 72.8 °F | 3.83 in. |
| November | 38.2 °F | 60.9 °F | 4.64 in. |
| December | 33.2 °F | 51.9 °F | 6.12 in. |
| Annual | 49.2 °F | 70.3 °F | 58.58 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |